High-voltage distributer for electric ignition apparatus



F. BILLON'. HIGH VOLTAGE DISTRIBUTER FOR ELECIRIC IGNITION APPARATUS.

APPLICATION FILED MAR. 14, 19I8- Patented Aug. 10, 1920.

INVENTOR 7 fifiiZZon 4m.

ATTORNEY UNITED STATES PATENT OFFICE.

FREDERIC BILLON', OF SOLO'IIIURN, SWITZERLAND.

Specification of Letters Patent.

Patented Aug. 10, 1920.

Application filed March 14, 1918. Serial No. 222,383.

To all whom it may concern Be it known that I, Fnnnnnro BILLON, a citizen of the Swiss Republic, residing at Solothurn, Switzerland, have invented certain new and useful Improvements in High- Voltage Distributors for Electric Ignition.

Apparatus, of which the following is a specification.

This invention relates to a novel construction of high voltage distributers for two-cylinder internal combustion engines and more particularly to such engines having their cylinders arranged in V-fashion, and consists in the example shown of the arrangement of current-supplying and current-collecting contacts arranged around the periphery of a distributing ring which has the conducting segments inserted in the periphery thereof.

This invention further consists in this that, instead of the hitherto usual arrangement with a plurality of currentcollecting carbon brushes and of one current-supplying carbon brush common to all said currentcollecting brushes, a separate current-supplying carbon brush is provided for each current-collecting carbon brush as near as possible to the latter. This improved arrangement has considerable technical advantages. Owing to the shorter segment the diameter of the distributor ring may be made smaller than hitherto. Nevertheless, longer creeping paths are provided for the difference of voltage between separate conducting parts. The shortening of the distributer segment has further the result of considerably increasing the mechanical strength of the distributer ring, because the segment which is composed of conducting material and is cast in the insulating mass of the ring, causes of itself a diminution of the strength of the ring.

A constructional example of the invention is illustrated in the accompanying drawings in which:

Figure 1 shows partly in section and partly in end elevation an improved high 7 voltage distributer according to this invention.

Fig. 2 is a similar view in plan thereof.

a is the high voltage supply terminal. This terminal branches off at the plate 9 into two parallel branches arranged through sections a of a common brush-holder and leading to the current-supplying carbon brushes 4 and b respectively which are also mounted in the section a and which sli-p over the distributer ring 6. Each current-collecting carbon brush 0 is mounted in a passageway in the corresponding holder-section and arranged as near as possible to its corresponding current-supplying brush. The corresponding pairs of current-supplying and collecting carbon brushes b 0 and b 0 are temporarily connected respectively together by means of a conducting segment at which is cast in the distributer ring 0 composed of insulating material. By this means the high voltage current is conveyed to the points of ignition by means of the branches which are conductively connected to'the current-collecting carbon brushes and issue from the apertures f and 7 respectively.

In theconstructional example shown, the holder has its section a arranged on opposite sides of the distributer while the corresponding current-supplying and current-collecting contacts are arranged side by side around the periphery of the distributer ring.

Instead of employing two current-collecting contacts as in the example shown, the invention may also be applied to a case of any desired number of current-supplying and current-collecting contacts, and a high voltage distributer constructed for such a case may be employed for engines having any desired number of cylinders.

What I claim is 1. In a high voltage distributer for electric ignition apparatus for internal combustion engines having cylinders arranged in V-fashion the combination of a distributer ring of relatively small diameter, a conducting segment embedded in the periphery of the ring, a brush holder arranged about the ring, current-supplying carbon brushes in the holder bearing on the periphery of the ring for coacting with the segment, separate current-collectin brushes mounted in the holder in proximity tothe carbon supplying brushes for coacting with the segment in the ring and the supplying brushes, and a high voltage terminal having divergent branches leading to the current-supplying carbon brushes.

2. In a high voltage distributer for elec tric ignition apparatus for internal combustion engines having cylinders arran ed in V-fashion the combination of a distri uter ring of relatively small diameter, a relatively short conducting segment embedded therein, a brush holder including two sec- 10 brushes, the collecting brushes being arrangedas 'near as possible to the corresponding supplying brushes, conducting Wires mounted in the passageways in the holder sections and leading to the brushes and a high voltage terminal connected with the current supplying conducting wires.

In testimony whereof I have signed my name to this specification.

FREDERIC BILLON. 

